Most stage wins by nation
Most stage wins by country in Itzulia Basque Country 2021.
Most stage top-10s
| # | Country | Top-10s | Per year | |
|---|---|---|---|---|
| 1 | Spain | 13 | per year | |
| 2 | Slovenia | 10 | per year | |
| 3 | Denmark | 6 | per year | |
| 4 | Great Britain | 5 | per year | |
| 5 | France | 5 | per year | |
| 6 | United States | 3 | per year | |
| 7 | Belgium | 3 | per year | |
| 8 | Colombia | 3 | per year | |
| 9 | Germany | 3 | per year | |
| 10 | New Zealand | 2 | per year | |
| 11 | Netherlands | 1 | per year | |
| 12 | Canada | 1 | per year | |
| 13 | Norway | 1 | per year | |
| 14 | Czech Republic | 1 | per year | |
| 15 | South Africa | 1 | per year | |
| 16 | Australia | 1 | per year | |
| 17 | Italy | 1 | per year |